led: support txhd2 led driver [3/3]

PD#SWPL-119881

Problem:
there is no txhd2 led driver

Solution:
need to support txhd2 led driver

Verify:
txhd2 pxp

Change-Id: Ib6bdfb542a3d48cfac94edd18c6ee8de706025cb
Signed-off-by: junyi.zhao <junyi.zhao@amlogic.com>
1 file changed